Question

The average of three number is 8 and two numbers are 5 and 12 then the third number is

Answer 1

Answer:

7

Step-by-step explanation:

Average = sum of numbers/ quantity of numbers

5+12+x/3 = 8

17 + x/3 = 8

17 + x = 8×3 = 24

x = 24-17

x = 7

Proof:- 5+12+7/3 = 8

24/3 = 8

8=8